| System Action | Hand Gesture | Notes | |
|---|---|---|---|
| Application Status | |||
| Unlock Application | Thumb Up | Thumb Up, other fingers tucked in. If there are added functionalities for confirmation, this gesture would be more appropriate for agreeing or answering yes. | |
| Lock Application | Thumb Down | Thumb Down, other fingers tucked in. If there are added functionalities for confirmation, this gesture would be more appropriate for disagreeing or answering no. | |
| Series Navigation | |||
| Go To Previous Series | Swipe Up | Palm facing upward. Smaller movement of four fingers pivoting upward. | |
| Go To Next Series | Swipe Down | Palm facing downward. Smaller movement of four fingers pivoting downward. | |
| Series Image/Slice Navigation | |||
| Go To Previous Image In The Series | Swipe Left | Palm facing camera or side. Move hand to the left. | |
| Go To Next Image In The Series | Swipe Right | Palm facing camera or side. Move hand to the right. | |
| Series Animation | |||
| Play Series | Swipe Down (Side View) | Side view of the hand facing screen. Palm facing downward. Smaller movement of four fingers pivoting downward. | |
| Play Series In Reverse | Swipe Up (Side View) | Side view of the hand facing screen. Palm facing upward. Smaller movement of four fingers pivoting upward. | |
| Stop Playing Series | Stop Sign | Open hand palm Facing Screen. | |
| Panning | |||
| Pan Up | Slide Two Fingers Up | Point index and middle finger. Move hand or two fingers upward. | |
| Pan Down | Slide Two Fingers Down | Point index and middle finger. Move hand or two fingers downward. | |
| Pan Left | Slide Two Fingers Left | Point index and middle finger. Move hand or two fingers towards the left. | |
| Pan Right | Slide Two Fingers Right | Point index and middle finger. Move hand or two fingers towards the right. | |
| Brightness Manipulation | |||
| Increase Brightness | Push Hand Away | Palm facing camera, move open hand towards camera. Taken from Jacob et al | |
| Decrease Brightness | Pull Hand In | Back of hand facing camera, move open hand away from camera. | |
| Orientation Manipulation | |||
| Rotate Counter-clockwise | Swipe Counter-clockwise | Palm facing camera, wave hand to the left (counter-clockwise). Taken from Jacob et al | |
| Rotate Clockwise | Swipe Clockwise | Palm facing camera, wave hand to the right (clockwise). Taken from Jacob et al | |
| Zoom Level Manipulation | |||
| Zoom In | Open Two Fingers | Index and thumb touching initially, other fingers tucked in. Move index and thumb away from each other. | |
| Zoom Out | Close Two Fingers | Index and thumb away from each other initially, other fingers tucked in. Move index and thumb towards each other until they touch. | |